John Gates, on right, and an unidentified man use stopwatches to test a tire that is set up on round track at the Gates Rubber Company roof in Denver, Colorado. Shows smokestack, hopper, brick wall, and Charles C. Gates on right with several men in...

At the Gates Rubber Company's May Day celebration, several women in matching costumes, with headbands and ballet shoes, hold long ribbons attached to a Maypole. The May Day queen sits on a stage with a crown and a bouquet of flowers; John Gates...

Interior view shows guests seated for a banquet at the Gates' family Bear Creek home in Colorado. Mr. Charles C. Gates stands at the end of the table; Mrs. Charles (Hazel) Gates is seated with her back to the camera; Mr. John Gates is the third...